NOTICE - The following device(s) are recommended alternatives:

The CXWL0009 is a highly-integrated monolithic ultra-wideband (UWB) motion detector RFIC that integrates the transmit output amplifier and the full receive path. The transmit power level is adjustable along with the detection range. The radar is a homodyne configuration for simplicity and small size. An integrated RF oscillator provides the carrier frequency for the Tx pulse and the local oscillator (LO) for the receive mixer. The homodyne radar architecture helps to reduce the power consumption. An I²C digital interface is used to communicate and configure the CXWL0009 for the desired configuration.


  • Monolithic motion detector radar
  • Complete UWB radar transceiver
  • Adjustable detection range
  • Minimum range: ~1 foot
  • Maximum range: ~50 feet
  • Low power: ~15mW, typical
  • Sleep Mode
  • 75dB gain (max)
  • Minimum Rx signal level: approximately -120dBm
  • RoHS-compliant, 4 × 4 mm 24-VFQFPN  

Product Options

Orderable Part ID Part Status Pb (Lead) Free Carrier Type Package Buy Sample
CXWL0009-HF-QFN Active 1 Tray Package Info
CXWL0009-HF-QFN-TR Active 1 Reel Package Info

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
CXWL0009 Datasheet Datasheet PDF 563 KB
User Guides & Manuals
CXWL0009-EVB User Manual Manual - Eval Board PDF 807 KB